A lab explosion kills medical researcher Ling Jin Sui – then she wakes as a disgraced magistrate’s daughter being priced like livestock. Her father is executed, her mother and little brother are exiled to the frozen border, and her uncle plans to sell her by nightfall. Ling Jin Sui fights free, finds her grandfather, and cuts her hair: she will pass as a boy and ride for the frontier to drag her family home.
On the road she saves a hunted man and steals his token to lure assassins away – only to learn he is the deposed crown prince. Trapped with his identity, she reaches the garrison wearing his name, hiding her body and her past while a mysterious pocket space lets her stockpile medicine, seed, and tools, turning wasteland into irrigated fields and shacks into clinics. Every harvest funds walls and soldiers; every victory draws raiders, officials, and the real crown prince back toward her lie. Expect hard-edged survival, ingenious farming and fortress-building, and a slow-burn romance sparked by a stolen title.